head to head
F1 25 asks more than Grand Theft Auto V, and the gap is execution.

Execution · Practiced Mastery
The current entry in the officially licensed Formula 1 racing simulation series.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.
F1 25 leans Execution (Practiced Mastery); Grand Theft Auto V leans Execution (Practiced Mastery).
F1 25 leans clearly harder on execution.
F1 25
precise braking, throttle, and racing lines
Grand Theft Auto V
Driving and shooting demand decent inputs.
Grand Theft Auto V leans a little harder on reads, though the gap is small.
F1 25
minor multiplayer positioning reads
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
F1 25
weather and safety-car randomness
Grand Theft Auto V
Some mission and lobby randomness.
F1 25 leans clearly harder on optimization.
F1 25
strategy, tire, and setup optimization
Grand Theft Auto V
Heists, money loops, builds learnable.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.